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SKF / Needle roller bearings

SKF RNA 4912

Single row needle roller bearing with machined rings, with flanges, without inner ring technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Outside diameterD
85 mm
WidthB
25 mm
Dynamic load ratingC
69.5 kN
Static load ratingC0
114 kN
Limiting speednG
6700 r/min
Mass≈m
0.275 kg

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionNeedle roller bearings
Outside diameterD85 mm
WidthB25 mm
Basic dynamic load ratingC69.5 kN
Basic static load ratingC0114 kN
Fatigue load limitPu14.6 kN
Reference speednref6000 r/min
Limiting speednG6700 r/min
Mass≈m0.275 kg
SealingWithout
CageSheet steel
Bearing materialBearing steel
LubricantNone
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter of needle roller complement68.0 mm
Outside diameter85.0 mm
Width25.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryNeedle roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/needle-roller-bearings/needle-roller-bearings-with-machined-rings
Structure group IDBN1_002
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions2 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of housing abutmentD amax. 80 mm
Fillet radiusr amax. 1 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC69.5 kN
Basic static load ratingC 0114 kN
Fatigue load limitP u14.6 kN
Reference speed6000 r/min
Limiting speed6700 r/min
Engineering — Dimensions4 parameters
Engineering — Dimensions
ParameterSymbolValue
Diameter under rollersF w68 mm
Outside diameterD85 mm
WidthC25 mm
Chamfer dimension outer ringr 1,2min. 1 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.275 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating69.5 kN
Basic static load rating114.0 kN
Reference speed6000.0 r/min
Limiting speed6700.0 r/min
SKF performance classSKF Explorer
Properties13 parameters
Properties
ParameterSymbolValue
Bearing partBearing without inner ring
Number of rows1
Outer ring typeMachined (solid)
Aligning featureWithout
CageSheet steel
Number of flanges, outer ring2
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWith
Indicative carbon footprint for new product1.0 kg CO 2 e

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
SKF RNA 4912
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